Excessive particulate matter in flue gases from the sulfuric acid plant
Thread Content
When the electrostatic demisting system is turned off, the particle concentration readings spike significantly in an instant. It is suspected that the small water droplets in the flue gas are being mistaken for particles. Has anyone encountered a similar situation? How can this be avoided?:D:D:D
Electrostatic mist eliminators can remove dust and acid mist (if the anode tubes and electrodes of the electrostatic mist eliminator are not cleaned for a long time, dust accumulation will lead to discharge)
First, you need to understand what the principle of particulate matter monitoring is – backscattering? Forward scattering? In situ? Extract?
The small water droplets in the flue gas are considered particulate matter; in my opinion, particulate matter should not be measured in the exhaust gases from sulfuric acid plants. The acid mist index should be measured.
What you are measuring as particulate matter concentration is actually the concentration of acid mist
I have no idea what method you used for the measurement; it’s possible that both particulate matter and acid mist were counted as particulate matter. . . . .
It is currently unavoidable; the mist droplets produced by wet flue gas desulfurization have a small particle size, and under the new particulate matter testing methods they are considered to be particulate matter